Mechanical Commissioning Authority 2

Mechanical Commissioning Authority

GAI Consultants is seeking an experienced Mechanical Commissioning Authority (CxA). Working under the direction of the Mechanical Commissioning Lead, the CxA executes the hands-on mechanical commissioning scope on assigned data center and building commissioning programs including: installation verification, equipment startups, functional performance testing, and integrated systems testing per the project Commissioning Plan, program checklists, and approved test procedures.

This role corresponds to the ACG Commissioning Technician (CxT) designation and is internally titled Technical Specialist per program standards. The Mechanical CxA is not a supervisory role. This individual works independently on assigned scopes, exercises sound technical judgment, and communicates field conditions, deficiencies, and progress to the Mechanical Lead daily. The CxA will work within a team to ensure success of the projects.

Key Responsibilities

• Support L1 Factory Witness Testing: attend factory tests for mechanical equipment and document performance against approved factory test procedures
• Execute L2 mechanical installation verification and pre-startup checks: equipment placement, piping connections, support and seismic bracing, insulation, pipe pressure and leak testing, strainer conditions, and pre-startup requirements
• Perform L3 mechanical equipment startups under the Mechanical Lead: chiller startup, cooling tower commissioning, pump and hydronic system checks, CRAH/CRAC startup, and associated controls point verification
• Execute L4 functional performance testing per approved FPTs: equipment performance, sequence of operation verification, setpoint validation, alarm testing, and fail-mode response for assigned mechanical systems
• Participate in L5 Integrated Systems Testing as directed: execute assigned test scripts, observe cross-system responses, and document results accurately and completely

Documentation & Reporting

• Complete all commissioning checklists, startup records, and functional test forms accurately and legibly; transfer to program documentation platform on the same day as testing.
• Maintain a daily field log documenting activities, personnel present, equipment tested, deficiencies, environmental and safety conditions
• Record and submit deficiencies and non-conformances to the Issues Log with description, location, responsible party, and supporting photos within 24 hours
• Support assembly of L6 turnover documentation including system test summaries, deferred test logs, and O&M documentation inputs

Coordination & Communication

• Coordinate daily field activities with mechanical subcontractor foremen, OEM service technicians, and the GC field superintendent
• Communicate field observations, deficiencies, and schedule conflicts to the Mechanical Lead promptly; attend commissioning coordination meetings as directed
• Support the Mechanical Lead in witnessing AHJ inspections and owner witness testing activities

Safety

• Comply with all site safety requirements including PPE, sign-in/sign-out, hot work permits, confined space protocols, and refrigerant handling safety
• Observe and support LOTO procedures for all de-energized mechanical work; never energize or start equipment without confirmed authorization from the Mechanical Lead
• Report unsafe conditions, improper installations, or LOTO violations immediately to the Mechanical Lead and GC safety representative

Working Conditions & Physical Requirements

• Up to 65% travel; sustained work in energized electrical environments with full NFPA 70E PPE compliance; confined spaces, heights, temperature extremes, and elevated noise
• Occasionally lift up to 50 lbs; climb ladders and stairs up to 12 floors; available for extended hours during critical testing milestones; valid driver's license required
• Sustained work in energized electrical environments requiring full PPE compliance with NFPA 70E at all times
• Ability to work in confined spaces, at heights, and in environments with elevated noise levels, temperature extremes, and limited lighting
• Availability to work extended hours, nights, and weekends during critical testing milestones and owner acceptance events
• F…